What is/are the word(s) for a person who writes/speaks with the attitude of always being right, having the final answer(s), never having their position or interpretation questioned, having the final say. etc.? An individual who stands for him/ herself as the ultimate authority on a subject, who entertains no possible alternatives to their interpretation of a subject? “He writes as though he is the ______ on this topic. (God has no control over it.) ” No authority, but a word meaning the presumed authority – seeing this as a negative trait.